was read into one of the problems in the set with setup information that
was specific to Union College (where this orientation was first written). I suspect that the Union College specific aspects of the set were removed
but the external file was not discarded. I believe that includePGfile() allows you to read in external files. This was included in the unionInclude.pl macro files which is at NationalProblemLibrary/macros/Union.
A similar function includePGproblem($filePath) is also available. It is defined in pg/macros/PG.pl
Davide Cervone could tell you the original purpose of the file. Arnie Pizer might also have some information since he recently reorganized the setOrientation collection.
Hope this helps.